The WS3927 features a precisely tuned ceramic patch antenna, 15KV ESD protection, a two stage high gain (28 dB) Low Noise Amplifier (LNA), with a mid-section SAW filter that provides superior out-of-band signal rejection. Housed in a very compact all plastic weatherproof enclosure, the WS3927 can be installed almost anywhere on a vehicle allowing great flexibility. With its 2.7 to 5 volt operation, the WS3927 can be used with any GPS system availble.